Briquet-mold.



E. FERNHOLTZ.

BRIQUET MOLD.

APPLICATION FILED SEPT. 14. 1909.

1,107,663, Patented Aug'.18,1914

E. FERNHOLTZ.

BRIQUET MOLD.

APPLICATION FILED SEPT. 14, 1909. 1,1 07,663. Patented Aug, 1s, 1914.

3 SHEETS-SHEET 2 MMM E. FERNHOLTZ.

BRIQUET MOLD.

APPLICATION rlLED sEPT.14,19o9.

Patented Aug. 18, 1914.

3 SHEETS-SHEET 3.

IWW.

v rrnn srafrns rafrnivr ermee.

EMIL FERNI-IOLTZ, 0F LOS ANGELES, CALIFORNIA, ASSIGNOR TO THE NATIONAL BRIQUETTING ANI) CLAY WORKING MACHINERY COMPANY, OF PHOENIX, ARI- ZONA, A CORPORATION OFARIZONA TERRITORY.

BRIQUET-MOLD.

inoaeee.

Specification of Letters Patent.

Application filed September 14, 1909.

Patented Aug. 18, 1914.

serial No. 517,724.

To all whom it may concern Be it known that I, EMIL FERNHOLTZ, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented new and useful Improvements in Briquet-Molds, of which the following is a specification.

This invention relates to molds for use in a machine designed to make briquets from lignite, peat, coal, sawdust, lampblaek, and other carbonaceous substances, and in which machine a sigle ram is employed to drive the material through a tapering mold in which the material becomes compacted under pressure oi? the ram by reason of friction with the tapering walls of the mold. In `such machines there is great wear upon the molds, and unless the mold is lined the eX- pense or" renewing the molds is very great.

This `invention relates to a mold having a satisfactory removable internal wearing surface that can be readily replaced from time to time as the same becomes worn, the lining beingconstructed of four pieces constituting a pair of straight flat cheeks and a pairof complementary trough-shaped `perforated shoes of thin strong hard material, as saw steel, swaged to the required form and planished or otherwise made smooth.

An object of this invention is to provide improved means for allowing air to escape from the mold so that the briquet may be perfectly compacted and will not be liable to check or crack open after it comes from the mold.

Other objects are strength and simplicity, and ease of assembling and dismantling.

Further objects may appear from the subjoined detail description.

The accompanying drawings illustrate the invention. i p

Figure lis a front elevation of the mold. The top of the hopper is broken away to y contract the view. Figa 2 is a plan of the mold with plunger in position `for ramming the charge. The mechanism `for operating the plunger is broken and partly omitted from the view. Fig.` 3 is a fragmental side elevation of the mold partly in longitudinal section on line m3, Figs. 1, 2 and 5. Fig. 4: is a plan ofthe parts shown in Fig. 3 about one-half being in section on line m4, Figs. 1,

3 and 5. Fig. 5 `is a cross-sectional eleva-V tion on line m5, Figs. 2, 3 and 4. Fig. Gis an enlarged detail in front and sectional elevation on line as, Figs. 8 and 9. Fig. 7 is a fragmental plan of the underside of the top mold-section holder. A portion is shown in section. Fig. 8 is a sectional detail on various planes indicated by lines ma, Figs. 6, 9 and l0. Fig. 9 is a section on line Figs. 6, 8 and 10. Fig. 10 is a fragmental section of the nozzle on line elo-a1", Figs. 8 and 9 looking to the left.

The trame of the mold comprises two complementary bed plates l, 2, that may be of any desired length, being provided with bottom mold-blocks 3, 4, having complementary recesses 5, 6, to form the bed for the bottom 1noldholder 7 the upper parts of said recesses being broadened to form steps 8 for the side sections 9, 9, of the mold proper, between which is the bottom section 10 of the mold proper. The bed plates are provided at their ends with transverse bolt holes 11, 12, through which are passed transverse hed plate bolts 13 secured bynuts 14 to hold the mold blocks together. The bed plates rearwardly from the mold blocks 3,4, are inbent at their ends and provided with the medial. webs 15 bolted together by bolts and nuts 16. Each of the bed-plates is also provided with a pair of vertical bolt holes 17, 18, to receive vertical meld-block bolts 19, 20. Upon the mold-blocks 3,4, are mounted side-stands 21, 22, each of which is provided with a pair of vertical bolt holes 17.', 18', corresponding to and registering with the bolt holes 17 and 18. The vertical bolts 19 and 20 extend through the vertical bolt-holes and are secured by nuts 23 whereby the sidestands are fixed to the bed-plates. The tops of the side-stands are held together by heavy U-shaped steel clamps 24, notched to fit over the tops of the stands, the contacting surfaces of the clamps and stands being planed to it exactly, thus to form close joints at 25. The side-stands 21, 22 are spaced apart, the inner faces 26 thereof being in the produced vertical planes of the` side walls 27 of the recesses 5, 6. The top mold-holder 28 exactly fits betweenrthe inner faces 26 and is movable up and down and rests upon the upper section 29 of the mold proper, which upper section 29 is of like dimensions with the bottom section 10 and is capable of moving up and down between the side sections 9. The mold also comprises an adjustable head block and a transverse shaft tor the saine.

The adjustable head block 30 is journaled on the transverse shaft 3l which is fixed at its ends in the side stands 21 and 22, a boxing cap 32 being secured by bolts 33 to the head block 30. The transverse shaft 31 is above the head block at the front or intake end thereof, and at the rear end, a nut 34 having :trangible lugs 35 is loosely mounted in gains 36 in the stands. o'aid lugs are constructed to resist the tremendous pressure in the operation of producing the briquets; but are adapted to be broken when such pressure is greatly excessive, and before any of the other parts can become broken so that in case of accidental clogging no serious breakage or other damagev will result. Said nut is mounted loosely .between the stands to resist the thrust of an adjust ing screw 37 which is provided with a worm gear 38, 38 which in turn is operated' by a wheel 39 through shaft 40; said shaft being mounted in stanchions 41 bolted to the stands and provided in their tops with eyes 42 through which a brace bolt 43 extends the same being secured by nuts 44, said stands being' spaced apart by a tubular spacer 45 on the brace bolt.

The material chute 46 extends downward at the front of the head block 30 and the plunger 47 is arranged to reciprocate through a hole 48 in the front wall 49 of said chute into the top of which a hopper 50 of an automatic feeder opens, said feeder being provided with a rotary member 5l to automatically feed material to the front end of the mold proper.

The mold holders 7 and 28 extend across the joint between the mold blocks 3, 4, and are .Z1-shaped; their bodies being straight and provided at the ends with reversely arrangedlugs 52, 53, 54, 55, one lug oneach projecting down and they other up. The length of the bottom mold holder 7 is greater than that of the top mold holder 28; said botto-m mold holder extending from the rear of the mold blocks 3, 4, to the front thereof and there projecting somewhat beyond the bottom of the chu-te 46 and the bottom lug 52', thereof hooks upon the front ends of said blocks 3, 4. The rear lug 53 of' the bottom `mold holder extends upward and forms a shoulder against which the rear end of the bottom mold section 10 ab-uts so that the bottom mold holder 7 prevents forward movement of the bottom mold section l0. The front lug 54 of the top mold holder 23- projects upward and engages the front endof the head block 36 while the rear lug 55- extends down in front of the top mold section 29. The front end of the top mold section is fixed to the top mold holder 28 by a bolt 56 extending down through the lug 54 and screwed into said top mold section 29. An annular nozzle 57 having a central perforation 58 of the form approved for the crosssection of a briquet is litted to the rear lugs 53, 55, and is fixed thereto by the bolts 59, 60, extending through vertical slots 59, 60.

lThe pair of rside sections 9 and 9 of the mold, and the pair of bottom and top sections l0 and 29 of the mold are spaced apart so'as to leave an opening therebetween somewhat greater than the opening through the nozzle. rlhe nozzle is thus made to project beyond the inner walls o" the mold sections a distance suhiciont to accommodate the mold liners which comprise two cheek liners 61 and bottom and top liners 62, 63 respectively, that are all made of comparatively thin sheet or strip stock of practically uniform thickness so that they may be produced at low cost as by a punch press. The two cheek liners are il'at and are of greater width than the space between the top and bottom mold sections l() and 29; The bottom and top liners 62, 63 iitbetween the cheek liners and are trough-shaped having a Hat middle portion 64 and curved edges 65, 66. The bottoni liner 62' extends from the front end to the rear end of the bottom mold section 10 and the top liner 63 extends from the front end to the rear end of the top mold section 29. rlhe cheek liners 61 are flat straight pieces that iit against the inner sides of the side sections 9 and 9l andI extend from end to end thereof, and also extend between said side sections on the opposite sides respectively of the bottom and top sections l0 and 29' and their liners 62 and 63 so that the mold sections, mold holders, mold blocks and stands all cooperate to positively hold the liners in place. Such liners, however, are detachably fixed yto their `respective mold sections by screws 67 so that they may be replaced when worn.

The inner faces of the mold sections 10 and 29 converge toward the rear of the mold, such convergence extending along the perforated portions from t to I) and the bottom and top liners 62' and 63 are provided with minute perforations 68 which extend aslant forwardly down and up communicating' with the inner ends of ducts 69 in the mold sections 10 and 29 and that expand outwardly aslant forwardly and communicate with transverse channels 70 between the mold sections and the mold holders and lead to" open ways 7l that extendlengthwise of the mold above and below the cheek sections 9 fly-Wheels 77 ere fixed, the seme being driven by connecting rods 78 of an engine, no1J shown, mounted on the bed-plates.

The mold holders 7 and 28 `are provided with circulation chambers 79 Which may be supplied through inlet and exhaust pipes 80, 8l, with a heating or cooling mediumes oeoasion may require to bring the mold to :L desired temperature.

I oleini:-

In combination, top and bottom mold holders; top, bottom and side mold sections, there being duets in the top and bottom mold sections; end liners for seid sections respectively, there being perforetions in the top und bottom liners to register with said duets, and there being transverse channels between the mold holders and the top and bottom mold sections to communicate with said ducts.

In testimony whereof, I have hereunto set my hand at Los Angeles, California, this 25th day of August, 1909.

EMIL FERNHOLTZ.

In presence of JAMES R. TOWNSEND, C. W. FERNHOLTZ.

Copies of this patent may be obtained for ve cents eaoh, by addressing the Commissioner of Iatents, Washington, D. C. 

